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RetroShare/retroshare-gui/src/gui/gxsforums/GxsForumModel.h

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/*******************************************************************************
* retroshare-gui/src/gui/gxsforums/GxsForumModel.h *
* *
* Copyright 2018 by Cyril Soler <csoler@users.sourceforge.net> *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Affero General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Affero General Public License for more details. *
* *
* You should have received a copy of the GNU Affero General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
#include "retroshare/rsgxsforums.h"
#include "retroshare/rsgxsifacetypes.h"
#include <QModelIndex>
#include <QColor>
// This class holds the actual hierarchy of posts, represented by identifiers
// It is responsible for auto-updating when necessary and holds a mutex to allow the Model to
// safely access the data.
// The model contains a post in place 0 that is the parent of all posts.
typedef uint32_t ForumModelIndex;
struct ForumModelPostEntry
{
ForumModelPostEntry() : mPublishTs(0),mMostRecentTsInThread(0),mPostFlags(0),mReputationWarningLevel(0),mMsgStatus(0),prow(0) {}
enum { // flags for display of posts. To be used in mPostFlags
FLAG_POST_IS_PINNED = 0x0001,
FLAG_POST_IS_MISSING = 0x0002,
FLAG_POST_IS_REDACTED = 0x0004,
FLAG_POST_HAS_UNREAD_CHILDREN = 0x0008,
FLAG_POST_HAS_READ_CHILDREN = 0x0010,
FLAG_POST_PASSES_FILTER = 0x0020,
FLAG_POST_CHILDREN_PASSES_FILTER = 0x0040,
};
std::string mTitle ;
RsGxsId mAuthorId ;
RsGxsMessageId mMsgId;
uint32_t mPublishTs;
uint32_t mMostRecentTsInThread;
uint32_t mPostFlags;
int mReputationWarningLevel;
int mMsgStatus;
std::vector<ForumModelIndex> mChildren;
ForumModelIndex mParent;
int prow ; // parent row
};
// This class is the item model used by Qt to display the information
class RsGxsForumModel : public QAbstractItemModel
{
Q_OBJECT
public:
explicit RsGxsForumModel(QObject *parent = NULL);
~RsGxsForumModel(){}
enum Columns {
COLUMN_THREAD_TITLE =0x00,
COLUMN_THREAD_READ =0x01,
COLUMN_THREAD_DATE =0x02,
COLUMN_THREAD_DISTRIBUTION =0x03,
COLUMN_THREAD_AUTHOR =0x04,
COLUMN_THREAD_CONTENT =0x05,
COLUMN_THREAD_MSGID =0x06,
COLUMN_THREAD_DATA =0x07,
COLUMN_THREAD_NB_COLUMNS =0x08,
};
enum Roles{ SortRole = Qt::UserRole+1,
ThreadPinnedRole = Qt::UserRole+2,
MissingRole = Qt::UserRole+3,
StatusRole = Qt::UserRole+4,
UnreadChildrenRole = Qt::UserRole+5,
FilterRole = Qt::UserRole+6,
};
enum TreeMode{ TREE_MODE_FLAT = 0x00,
TREE_MODE_TREE = 0x01,
};
enum SortMode{ SORT_MODE_PUBLISH_TS = 0x00,
SORT_MODE_CHILDREN_PUBLISH_TS = 0x01,
};
QModelIndex root() const{ return createIndex(0,0,(void*)NULL) ;}
QModelIndex getIndexOfMessage(const RsGxsMessageId& mid) const;
static const QString FilterString ;
std::vector<std::pair<time_t,RsGxsMessageId> > getPostVersions(const RsGxsMessageId& mid) const;
// This method will asynchroneously update the data
void updateForum(const RsGxsGroupId& forumGroup);
void setTreeMode(TreeMode mode) ;
void setSortMode(SortMode mode) ;
void setTextColorRead (QColor color) { mTextColorRead = color;}
void setTextColorUnread (QColor color) { mTextColorUnread = color;}
void setTextColorUnreadChildren(QColor color) { mTextColorUnreadChildren = color;}
void setTextColorNotSubscribed (QColor color) { mTextColorNotSubscribed = color;}
void setTextColorMissing (QColor color) { mTextColorMissing = color;}
void setMsgReadStatus(const QModelIndex &i, bool read_status, bool with_children);
void setFilter(int column, const QStringList &strings, uint32_t &count) ;
void setAuthorOpinion(const QModelIndex& indx,RsReputations::Opinion op);
int rowCount(const QModelIndex& parent = QModelIndex()) const override;
int columnCount(const QModelIndex &parent = QModelIndex()) const override;
bool hasChildren(const QModelIndex &parent = QModelIndex()) const override;
bool getPostData(const QModelIndex& i,ForumModelPostEntry& fmpe) const ;
QModelIndex index(int row, int column, const QModelIndex & parent = QModelIndex()) const override;
QModelIndex parent(const QModelIndex& child) const override;
Qt::ItemFlags flags(const QModelIndex& index) const override;
void clear() ;
QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
QVariant sizeHintRole (int col) const;
QVariant displayRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant decorationRole(const ForumModelPostEntry& fmpe, int col) const;
QVariant toolTipRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant userRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant pinnedRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant missingRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant statusRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant authorRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant sortRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant fontRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant filterRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant textColorRole (const ForumModelPostEntry& fmpe, int col) const;
QVariant backgroundRole(const ForumModelPostEntry& fmpe, int col) const;
/*!
* \brief debug_dump
* Dumps the hierarchy of posts in the terminal, to allow checking whether the internal representation is correct.
*/
void debug_dump();
signals:
void forumLoaded(); // emitted after the posts have been set. Can be used to updated the UI.
private:
RsGxsForumGroup mForumGroup;
bool mUseChildTS;
bool mFilteringEnabled;
TreeMode mTreeMode;
SortMode mSortMode;
void preMods() ;
void postMods() ;
void *getParentRef(void *ref,int& row) const;
void *getChildRef(void *ref,int row) const;
//bool hasIndex(int row,int column,const QModelIndex& parent)const;
int getChildrenCount(void *ref) const;
static bool convertTabEntryToRefPointer(uint32_t entry,void *& ref);
static bool convertRefPointerToTabEntry(void *ref,uint32_t& entry);
static void computeReputationLevel(uint32_t forum_sign_flags, ForumModelPostEntry& entry);
void update_posts(const RsGxsGroupId &group_id);
void setForumMessageSummary(const std::vector<RsGxsForumMsg>& messages);
void recursUpdateReadStatusAndTimes(ForumModelIndex i,bool& has_unread_below,bool& has_read_below);
uint32_t recursUpdateFilterStatus(ForumModelIndex i,int column,const QStringList& strings);
void recursSetMsgReadStatus(ForumModelIndex i,bool read_status,bool with_children);
static void generateMissingItem(const RsGxsMessageId &msgId,ForumModelPostEntry& entry);
static ForumModelIndex addEntry(std::vector<ForumModelPostEntry>& posts,const ForumModelPostEntry& entry,ForumModelIndex parent);
static void convertMsgToPostEntry(const RsGxsForumGroup &mForumGroup, const RsGxsForumMsg& msg, bool useChildTS, ForumModelPostEntry& fentry);
void computeMessagesHierarchy(const RsGxsForumGroup& forum_group, const std::vector<RsGxsForumMsg>& msgs_array, std::vector<ForumModelPostEntry>& posts, std::map<RsGxsMessageId, std::vector<std::pair<time_t, RsGxsMessageId> > > &mPostVersions);
void setPosts(const RsGxsForumGroup& group, const std::vector<ForumModelPostEntry>& posts,const std::map<RsGxsMessageId,std::vector<std::pair<time_t,RsGxsMessageId> > >& post_versions);
void initEmptyHierarchy(std::vector<ForumModelPostEntry>& posts);
std::vector<ForumModelPostEntry> mPosts ; // store the list of posts updated from rsForums.
std::map<RsGxsMessageId,std::vector<std::pair<time_t,RsGxsMessageId> > > mPostVersions;
QColor mTextColorRead ;
QColor mTextColorUnread ;
QColor mTextColorUnreadChildren;
QColor mTextColorNotSubscribed ;
QColor mTextColorMissing ;
friend class const_iterator;
};
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